Wiring Diagram - Mitsubishi Electric PKH18FK1 Technical & Service Manual

8

WIRING DIAGRAM

MODEL PCH24EK
1
SYMBOL NAME
C FAN MOTOR CAPACITOR
CN1<R.B> PROGRAM TIMER CONNECTOR
CN2<R.B> REMOTE SWITCH CONNECTOR
CN27<I.B> DRAIN UP MECHA. CONNECTOR
CN51<I.B> CENTRALLY CONTROL CONNECTOR
CN2L<I.B> LOSSNAY CONNECTOR
F<I.B> FUSE (6A)
FS THERMAL FUSE (196˚F 15A)
H HEATER ELEMENT
I.B INDOOR CONTROLLER BOARD
LS LIMIT SWITCH
MF FAN MOTOR (INNER THERMOSTAT)
TB3
TB2
TO OUTDOOR UNIT
CONNECTING WIRES
DC12V(polar)
POWER SUPPLY
208/230V 60Hz
1 PHASE
NOTES:
1.Since the indoor transformer (T) is connected with 230V power, if 208V power is used, change the wiring connection in the following procedure.
Indoor side transformer (T) for 208V YELLOW
Indoor fan (MF) for 208V
2.Since the outdoor side electric wiring may change be sure to check the outdoor unit electric wiring for servicing.
3.Indoor and outdoor connecting wires are made with polarities, make wiring matching terminal.
4.Symbols used in wiring diagram above are,
5.Emergency operation
If a trouble occurs with either the remote controller or the indoor microcomputer and no other trouble exists, emergency operation for cooling or
heating can be performed by changing the setting of dip switch (SW3(I.B)) on the indoor controller board (emergency dry operation is not possible).
WIRING DIAGRAM
SYMBOL
ML LOUVER MOTOR
MV VANE MOTOR
R.B REMOTE CONTROLLER BOARD
TH1 ROOM TEMPERATURE
THERMISTOR(32˚F/15k", 77˚F/5.4k")
TH2 PIPE TEMPERATURE
THERMISTOR(32˚F/15k", 77˚F/5.4k")
SW1<I.B> MODEL SELECTOR SWITCH
SW2<I.B> ADDRESS SELECTOR SWITCH
SW3<I.B> EMERGENCY OPERATION SWITCH
SW5<I.B> MODEL SELECTOR SWITCH
SW6<I.B> MODEL SELECTOR SWITCH
I.B
SW2 SW5 SW6 SW1
CN2L
LOSSNAY
654321 4321 4321 10 987654321
REMOCON
POWER
CN40
4 3 2 1
TO
HEATER
TRANS
REMOCON OUTDOOR
CN24 CN4T
CN22 CN30
2 1 3 2 1 2 1
4 3 2 1
2 BLU
1
BLU
3
BRN
2
ORN
1
YLW
T
AC
208V
7
88H
8
RED
BLK
TB1
L1
RED
L2
BLK
GRN
GROUND
208V RED
230V YELLOW
BLACK 208V BLACK
230V YELLOW
:Terminal block,
OC193-23
NAME
R.B
SW18
87654321
TH1 TH2
SW17
87654321
SW3
5 4 3 2 1 1 2 1 2
OFF
ON
CN50 CN20 CN21
4321
DRAIN INTAKE PIPE
X2 X3 X6 X5
X2 X3 X6
VANE
POSITION
CN23
TRANS LOUVER VANE M3 M2
2 1
6 5 4 3 2 1
ML
3 2 4
MV
AC
230V
LS
MF
YLW BLK
5
GRY BLK
6
RED RED
1
88H
3 5 H
BLK
WHT
2
88H
4 6
RED
:connector, :PC board insertion tab.
SYMBOL NAME
SW17<R.B> ADDRESS SELECTOR SWITCH
SW18<R.B> FUNCTION SELECTOR SWITCH
T TRANSFORMER
TB1~6 TERMINAL BLOCK
X2<I.B> LOUVER MOTOR RELAY
X3<I.B> VANE MOTOR RELAY
X4<I.B> FAN MOTOR RELAY
X5<I.B> FAN MOTOR RELAY
X6<I.B> FAN MOTOR RELAY
ZNR VARISTOR
26H HEATER THERMAL SWITCH
88H HEATER CONTACTOR
TB6
1 2
OFF
ON
CN1
5 4 3 2 1
CN2
OFF
ON
3 2 1
CENTRALLY
CONTROL D.U.M
CN51 CN27
X4
X5 X4
ZNR
F
M1M0 S R
C
1 3
5 1 8 9
GRN
26H
FS